Long live Qt 4.5!

1 files changed, 289 insertions, 0 deletions

diff --git a/examples/painting/painterpaths/window.cpp b/examples/painting/painterpaths/window.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include <math.h>
+
+#include "renderarea.h"
+#include "window.h"
+
+//! [0]
+const float Pi = 3.14159f;
+//! [0]
+
+//! [1]
+Window::Window()
+{
+    QPainterPath rectPath;
+    rectPath.moveTo(20.0, 30.0);
+    rectPath.lineTo(80.0, 30.0);
+    rectPath.lineTo(80.0, 70.0);
+    rectPath.lineTo(20.0, 70.0);
+    rectPath.closeSubpath();
+//! [1]
+
+//! [2]
+    QPainterPath roundRectPath;
+    roundRectPath.moveTo(80.0, 35.0);
+    roundRectPath.arcTo(70.0, 30.0, 10.0, 10.0, 0.0, 90.0);
+    roundRectPath.lineTo(25.0, 30.0);
+    roundRectPath.arcTo(20.0, 30.0, 10.0, 10.0, 90.0, 90.0);
+    roundRectPath.lineTo(20.0, 65.0);
+    roundRectPath.arcTo(20.0, 60.0, 10.0, 10.0, 180.0, 90.0);
+    roundRectPath.lineTo(75.0, 70.0);
+    roundRectPath.arcTo(70.0, 60.0, 10.0, 10.0, 270.0, 90.0);
+    roundRectPath.closeSubpath();
+//! [2]
+
+//! [3]
+    QPainterPath ellipsePath;
+    ellipsePath.moveTo(80.0, 50.0);
+    ellipsePath.arcTo(20.0, 30.0, 60.0, 40.0, 0.0, 360.0);
+//! [3]
+
+//! [4]
+    QPainterPath piePath;
+    piePath.moveTo(50.0, 50.0);
+    piePath.arcTo(20.0, 30.0, 60.0, 40.0, 60.0, 240.0);
+    piePath.closeSubpath();
+//! [4]
+
+//! [5]
+    QPainterPath polygonPath;
+    polygonPath.moveTo(10.0, 80.0);
+    polygonPath.lineTo(20.0, 10.0);
+    polygonPath.lineTo(80.0, 30.0);
+    polygonPath.lineTo(90.0, 70.0);
+    polygonPath.closeSubpath();
+//! [5]
+
+//! [6]
+    QPainterPath groupPath;
+    groupPath.moveTo(60.0, 40.0);
+    groupPath.arcTo(20.0, 20.0, 40.0, 40.0, 0.0, 360.0);
+    groupPath.moveTo(40.0, 40.0);
+    groupPath.lineTo(40.0, 80.0);
+    groupPath.lineTo(80.0, 80.0);
+    groupPath.lineTo(80.0, 40.0);
+    groupPath.closeSubpath();
+//! [6]
+
+//! [7]
+    QPainterPath textPath;
+    QFont timesFont("Times", 50);
+    timesFont.setStyleStrategy(QFont::ForceOutline);
+    textPath.addText(10, 70, timesFont, tr("Qt"));
+//! [7]
+
+//! [8]
+    QPainterPath bezierPath;
+    bezierPath.moveTo(20, 30);
+    bezierPath.cubicTo(80, 0, 50, 50, 80, 80);
+//! [8]
+
+//! [9]
+    QPainterPath starPath;
+    starPath.moveTo(90, 50);
+    for (int i = 1; i < 5; ++i) {
+        starPath.lineTo(50 + 40 * cos(0.8 * i * Pi),
+                        50 + 40 * sin(0.8 * i * Pi));
+    }
+    starPath.closeSubpath();
+//! [9]
+
+//! [10]
+    renderAreas[0] = new RenderArea(rectPath);
+    renderAreas[1] = new RenderArea(roundRectPath);
+    renderAreas[2] = new RenderArea(ellipsePath);
+    renderAreas[3] = new RenderArea(piePath);
+    renderAreas[4] = new RenderArea(polygonPath);
+    renderAreas[5] = new RenderArea(groupPath);
+    renderAreas[6] = new RenderArea(textPath);
+    renderAreas[7] = new RenderArea(bezierPath);
+    renderAreas[8] = new RenderArea(starPath);
+    Q_ASSERT(NumRenderAreas == 9);
+//! [10]
+
+//! [11]
+    fillRuleComboBox = new QComboBox;
+    fillRuleComboBox->addItem(tr("Odd Even"), Qt::OddEvenFill);
+    fillRuleComboBox->addItem(tr("Winding"), Qt::WindingFill);
+
+    fillRuleLabel = new QLabel(tr("Fill &Rule:"));
+    fillRuleLabel->setBuddy(fillRuleComboBox);
+//! [11]
+
+//! [12]
+    fillColor1ComboBox = new QComboBox;
+    populateWithColors(fillColor1ComboBox);
+    fillColor1ComboBox->setCurrentIndex(
+            fillColor1ComboBox->findText("mediumslateblue"));
+
+    fillColor2ComboBox = new QComboBox;
+    populateWithColors(fillColor2ComboBox);
+    fillColor2ComboBox->setCurrentIndex(
+            fillColor2ComboBox->findText("cornsilk"));
+
+    fillGradientLabel = new QLabel(tr("&Fill Gradient:"));
+    fillGradientLabel->setBuddy(fillColor1ComboBox);
+
+    fillToLabel = new QLabel(tr("to"));
+    fillToLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+
+    penWidthSpinBox = new QSpinBox;
+    penWidthSpinBox->setRange(0, 20);
+
+    penWidthLabel = new QLabel(tr("&Pen Width:"));
+    penWidthLabel->setBuddy(penWidthSpinBox);
+
+    penColorComboBox = new QComboBox;
+    populateWithColors(penColorComboBox);
+    penColorComboBox->setCurrentIndex(
+            penColorComboBox->findText("darkslateblue"));
+
+    penColorLabel = new QLabel(tr("Pen &Color:"));
+    penColorLabel->setBuddy(penColorComboBox);
+
+    rotationAngleSpinBox = new QSpinBox;
+    rotationAngleSpinBox->setRange(0, 359);
+    rotationAngleSpinBox->setWrapping(true);
+    rotationAngleSpinBox->setSuffix("\xB0");
+
+    rotationAngleLabel = new QLabel(tr("&Rotation Angle:"));
+    rotationAngleLabel->setBuddy(rotationAngleSpinBox);
+//! [12]
+
+//! [16]
+    connect(fillRuleComboBox, SIGNAL(activated(int)),
+            this, SLOT(fillRuleChanged()));
+    connect(fillColor1ComboBox, SIGNAL(activated(int)),
+            this, SLOT(fillGradientChanged()));
+    connect(fillColor2ComboBox, SIGNAL(activated(int)),
+            this, SLOT(fillGradientChanged()));
+    connect(penColorComboBox, SIGNAL(activated(int)),
+            this, SLOT(penColorChanged()));
+
+    for (int i = 0; i < NumRenderAreas; ++i) {
+        connect(penWidthSpinBox, SIGNAL(valueChanged(int)),
+                renderAreas[i], SLOT(setPenWidth(int)));
+        connect(rotationAngleSpinBox, SIGNAL(valueChanged(int)),
+                renderAreas[i], SLOT(setRotationAngle(int)));
+    }
+
+//! [16] //! [17]
+    QGridLayout *topLayout = new QGridLayout;
+    for (int i = 0; i < NumRenderAreas; ++i)
+        topLayout->addWidget(renderAreas[i], i / 3, i % 3);
+
+    QGridLayout *mainLayout = new QGridLayout;
+    mainLayout->addLayout(topLayout, 0, 0, 1, 4);
+    mainLayout->addWidget(fillRuleLabel, 1, 0);
+    mainLayout->addWidget(fillRuleComboBox, 1, 1, 1, 3);
+    mainLayout->addWidget(fillGradientLabel, 2, 0);
+    mainLayout->addWidget(fillColor1ComboBox, 2, 1);
+    mainLayout->addWidget(fillToLabel, 2, 2);
+    mainLayout->addWidget(fillColor2ComboBox, 2, 3);
+    mainLayout->addWidget(penWidthLabel, 3, 0);
+    mainLayout->addWidget(penWidthSpinBox, 3, 1, 1, 3);
+    mainLayout->addWidget(penColorLabel, 4, 0);
+    mainLayout->addWidget(penColorComboBox, 4, 1, 1, 3);
+    mainLayout->addWidget(rotationAngleLabel, 5, 0);
+    mainLayout->addWidget(rotationAngleSpinBox, 5, 1, 1, 3);
+    setLayout(mainLayout);
+//! [17]
+
+//! [18]
+    fillRuleChanged();
+    fillGradientChanged();
+    penColorChanged();
+    penWidthSpinBox->setValue(2);
+
+    setWindowTitle(tr("Painter Paths"));
+}
+//! [18]
+
+//! [19]
+void Window::fillRuleChanged()
+{
+    Qt::FillRule rule = (Qt::FillRule)currentItemData(fillRuleComboBox).toInt();
+
+    for (int i = 0; i < NumRenderAreas; ++i)
+        renderAreas[i]->setFillRule(rule);
+}
+//! [19]
+
+//! [20]
+void Window::fillGradientChanged()
+{
+    QColor color1 = qvariant_cast<QColor>(currentItemData(fillColor1ComboBox));
+    QColor color2 = qvariant_cast<QColor>(currentItemData(fillColor2ComboBox));
+
+    for (int i = 0; i < NumRenderAreas; ++i)
+        renderAreas[i]->setFillGradient(color1, color2);
+}
+//! [20]
+
+//! [21]
+void Window::penColorChanged()
+{
+    QColor color = qvariant_cast<QColor>(currentItemData(penColorComboBox));
+
+    for (int i = 0; i < NumRenderAreas; ++i)
+        renderAreas[i]->setPenColor(color);
+}
+//! [21]
+
+//! [22]
+void Window::populateWithColors(QComboBox *comboBox)
+{
+    QStringList colorNames = QColor::colorNames();
+    foreach (QString name, colorNames)
+        comboBox->addItem(name, QColor(name));
+}
+//! [22]
+
+//! [23]
+QVariant Window::currentItemData(QComboBox *comboBox)
+{
+    return comboBox->itemData(comboBox->currentIndex());
+}
+//! [23]